/* Viktor Wallet - Professional Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-hover: #252525;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --border: #27272a;
  --border-light: #3f3f46;
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon { font-size: 1.5rem; }

.header-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.header-links a:hover { color: var(--text-primary); }

/* Hero */
.hero {
  text-align: center;
  padding: 10rem 2rem 4rem;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 2rem;
  color: var(--accent-hover);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 0%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* Wallet Preview */
.wallet-preview {
  max-width: 380px;
  margin: 0 auto 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.wallet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.wallet-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.wallet-network {
  background: var(--accent);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.balance-display {
  text-align: left;
  margin-bottom: 1.5rem;
}

.balance-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.balance-symbol {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.wallet-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.wallet-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.wallet-btn:hover:not(:disabled) {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.wallet-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.wallet-btn-icon {
  font-size: 1.25rem;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  background: var(--accent-glow);
  border-radius: 0.75rem;
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover { color: var(--text-primary); }

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
}

/* Responsive */
@media (max-width: 640px) {
  header { padding: 1rem; }
  .hero { padding: 8rem 1.5rem 3rem; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .wallet-preview { margin: 0 1rem 2rem; }
  .balance-value { font-size: 2rem; }
  .features { padding: 2rem 1rem; }
  .header-links { display: none; }
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-name {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  overflow: hidden;
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-light);
}